<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            clearable
            @clear="getUserList"
            @keyup.enter.native="getUserList"
            placeholder="请输入内容"
            v-model="queryInfo.query"
          >
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>

        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>

      <!-- 表格区域 -->
      <el-table :data="userList" stripe border style="width: 100%">
        <el-table-column type="index" label="#" width="50"></el-table-column>
        <el-table-column prop="username" label="姓名" width="120"></el-table-column>
        <el-table-column prop="email" label="邮件"></el-table-column>
        <el-table-column prop="mobile" label="手机" width="110"></el-table-column>
        <el-table-column prop="role_name" label="角色" width="130"></el-table-column>
        <el-table-column label="状态" width="80">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              size="mini"
              @change="userStateChanged(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180">
          <template slot-scope="scope">
            <el-button
              size="mini"
              type="primary"
              icon="el-icon-edit"
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <el-button
              size="mini"
              type="danger"
              icon="el-icon-delete"
              @click="delUserById(scope.row.id)"
            ></el-button>
            <el-tooltip effect="dark" content="分配权限" placement="top" :enterable="false">
              <el-button
                size="mini"
                type="warning"
                icon="el-icon-setting"
                @click="setRole(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[2, 5, 10, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
    </el-card>

    <!-- 弹出式对话框 增加用户 -->
    <el-dialog title="新增用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
      <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="120px">
        <el-form-item label="用户名称" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="用户邮箱地址" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password" type="password"></el-input>
        </el-form-item>
        <el-form-item label="手机号码" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </div>
    </el-dialog>

    <!-- 弹出式对话框 编辑用户-->
    <el-dialog title="编辑用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="120px">
        <el-form-item label="用户名称" prop="username">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="用户邮箱地址" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号码" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser">确 定</el-button>
      </div>
    </el-dialog>

    <!-- 分配权限 对话框 -->
    <el-dialog
      title="分配权限"
      @close="setRoleDialogClosed"
      :visible.sync="setRoleDialogVisible"
      width="50%"
    >
      <p>当前用户：{{userInfo.username}}</p>
      <p>当前角色：{{userInfo.role_name}}</p>
      <p>用户角色：</p>
      <el-select v-model="selectedRoleId" placeholder="请选择">
        <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id"></el-option>
      </el-select>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    // 邮箱验证规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的邮箱地址'))
    }
    var checkMobile = (rule, value, cb) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[0-9]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号码'))
    }
    return {
      userList: [],
      total: 0,
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 5
      },
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 控制分配角色对话框
      setRoleDialogVisible: false,
      // 控制编辑对话框
      editDialogVisible: false,
      // 需要被分配角色的用户信息
      userInfo: {},
      // 存储角色列表数据
      rolesList: [],
      selectedRoleId: '',
      // 添加用户表单数据
      addForm: {
        username: '',
        email: '',
        mobile: '',
        password: '',
        mg_state: false
      },
      editForm: {
        id: '',
        username: '',
        email: '',
        mobile: ''
      },
      rightsId: {},
      // 表单验证对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { min: 3, max: 30, message: '长度在 3 到 30 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入emial', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 30, message: '长度在 6 到 30 个字符', trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // edit的表单验证对象
      editFormRules: {
        email: [
          { required: true, message: '请输入emial', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      }
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      // console.log(res)
      if (res.meta.status !== 200) return this.$message.error(res.meta.message)
      this.userList = res.data.users
      this.total = res.data.total
    },
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听改变时修改值
    async userStateChanged (userinfo) {
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功！')
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        // 若表单验证通过会返回true
        console.log(valid)
        if (valid) {
          const { data: res } = await this.$http.post('users', this.addForm)
          if (res.meta.status !== 201) return this.$message.error(res.meta.msg)
          this.$message.success(res.meta.msg)
          this.addDialogVisible = false
          this.getUserList()
        }
      })
    },
    // 编辑对话框
    async showEditDialog (id) {
      this.editDialogVisible = true
      const { data: res } = await this.$http.get(`users/${id}`)
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.editForm = res.data
      console.log(res.data)
    },
    // 监听编辑用户对话框的关闭事件
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    editUser () {
      this.$refs.editFormRef.validate(async valid => {
        if (valid) {
          const { data: res } = await this.$http.put(`users/${this.editForm.id}`, {
            email: this.editForm.email,
            mobile: this.editForm.mobile
          })
          if (res.meta.state === 200) return this.$message.error(res.meta.msg)
          this.$message.success(res.meta.msg)
          this.editDialogVisible = false
          this.getUserList()
        }
      })
    },
    // 删除用户的对话框
    async delUserById (id) {
      const confirmResult = await this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)

      // 如果用户确认删除，则返回值为字符串confirm
      // 如果用户取消了删除，则返回值为字符串 cancel
      console.log(confirmResult)
      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除！')
      }
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error(res.meta.msg)
      }
      this.$message.success('删除成功!')
      this.getUserList()
    },
    async setRole (userInfo) {
      this.userInfo = userInfo
      // 在对话框出现前，获取所有的角色数据
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取角色信息失败！')
      this.rolesList = res.data
      this.setRoleDialogVisible = true
    },
    // 点击确定后保存用户新的角色
    async saveRoleInfo () {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择需要分配的角色')
      }
      // 分配用户角色
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
      if (res.meta.status !== 200) return this.$message.error('更新角色失败！')
      this.$message.success(res.meta.msg)
      this.setRoleDialogVisible = false
      this.getUserList()
    },
    // 关闭对话框,清空数据值
    setRoleDialogClosed () {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style lang="less" scoped>
div {
  font-size: 13px;
}
.el-dialog__body p {
  line-height: 32px;
}
</style>
